import {mapGetters} from 'vuex';
export default {
  computed: {
    ...mapGetters('m_cart',['total'])
  },
  watch: {
    total(){
      this.setBadge();
    }
  },
  onShow(){
    this.setBadge();
  },
  methods: {
    setBadge(){
      uni.setTabBarBadge({
        index:2,
        text: this.total +'',
      })
    }
  }
}